./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/Urban-2013WST-Fig1-alloca_false-termination.c.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_5aa736d0-7d65-4903-af04-7506409f401d/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_5aa736d0-7d65-4903-af04-7506409f401d/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_5aa736d0-7d65-4903-af04-7506409f401d/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_5aa736d0-7d65-4903-af04-7506409f401d/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/Urban-2013WST-Fig1-alloca_false-termination.c.i -s /tmp/vcloud-vcloud-master/worker/working_dir_5aa736d0-7d65-4903-af04-7506409f401d/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_5aa736d0-7d65-4903-af04-7506409f401d/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash ccb5cb9edc315122662555ec62bb7adf5b85f05c ...................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-09 23:19:53,263 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-09 23:19:53,264 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-09 23:19:53,271 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-09 23:19:53,271 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-09 23:19:53,272 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-09 23:19:53,273 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-09 23:19:53,274 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-09 23:19:53,275 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-09 23:19:53,275 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-09 23:19:53,276 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-09 23:19:53,276 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-09 23:19:53,276 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-09 23:19:53,277 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-09 23:19:53,278 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-09 23:19:53,278 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-09 23:19:53,279 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-09 23:19:53,280 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-09 23:19:53,281 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-09 23:19:53,282 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-09 23:19:53,283 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-09 23:19:53,284 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-09 23:19:53,285 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-09 23:19:53,285 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-09 23:19:53,286 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-09 23:19:53,286 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-09 23:19:53,287 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-09 23:19:53,287 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-09 23:19:53,288 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-09 23:19:53,289 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-09 23:19:53,289 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-09 23:19:53,289 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-09 23:19:53,290 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-09 23:19:53,290 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-09 23:19:53,290 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-09 23:19:53,291 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-09 23:19:53,291 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_5aa736d0-7d65-4903-af04-7506409f401d/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-09 23:19:53,299 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-09 23:19:53,299 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-09 23:19:53,300 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-09 23:19:53,300 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-09 23:19:53,300 INFO L133 SettingsManager]: * Use SBE=true [2018-11-09 23:19:53,301 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-09 23:19:53,301 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-09 23:19:53,301 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-09 23:19:53,301 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-09 23:19:53,301 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-09 23:19:53,301 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-09 23:19:53,306 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-09 23:19:53,306 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-09 23:19:53,306 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-09 23:19:53,306 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-09 23:19:53,306 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-09 23:19:53,307 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-09 23:19:53,307 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-09 23:19:53,307 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-09 23:19:53,307 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-09 23:19:53,307 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-09 23:19:53,307 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-09 23:19:53,307 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-09 23:19:53,307 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-09 23:19:53,308 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-09 23:19:53,308 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-09 23:19:53,308 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-09 23:19:53,308 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-09 23:19:53,308 INFO L133 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_5aa736d0-7d65-4903-af04-7506409f401d/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ccb5cb9edc315122662555ec62bb7adf5b85f05c [2018-11-09 23:19:53,331 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-09 23:19:53,339 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-09 23:19:53,341 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-09 23:19:53,342 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-09 23:19:53,342 INFO L276 PluginConnector]: CDTParser initialized [2018-11-09 23:19:53,343 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_5aa736d0-7d65-4903-af04-7506409f401d/bin-2019/uautomizer/../../sv-benchmarks/c/termination-memory-alloca/Urban-2013WST-Fig1-alloca_false-termination.c.i [2018-11-09 23:19:53,377 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5aa736d0-7d65-4903-af04-7506409f401d/bin-2019/uautomizer/data/2e5494934/365f9fd0dbb14855953a3720a2333cc6/FLAG1dbe2367c [2018-11-09 23:19:53,802 INFO L298 CDTParser]: Found 1 translation units. [2018-11-09 23:19:53,802 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_5aa736d0-7d65-4903-af04-7506409f401d/sv-benchmarks/c/termination-memory-alloca/Urban-2013WST-Fig1-alloca_false-termination.c.i [2018-11-09 23:19:53,808 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5aa736d0-7d65-4903-af04-7506409f401d/bin-2019/uautomizer/data/2e5494934/365f9fd0dbb14855953a3720a2333cc6/FLAG1dbe2367c [2018-11-09 23:19:53,818 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_5aa736d0-7d65-4903-af04-7506409f401d/bin-2019/uautomizer/data/2e5494934/365f9fd0dbb14855953a3720a2333cc6 [2018-11-09 23:19:53,820 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-09 23:19:53,821 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-09 23:19:53,822 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-09 23:19:53,822 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-09 23:19:53,824 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-09 23:19:53,824 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:19:53" (1/1) ... [2018-11-09 23:19:53,826 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@365daa9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:19:53, skipping insertion in model container [2018-11-09 23:19:53,826 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:19:53" (1/1) ... [2018-11-09 23:19:53,832 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-09 23:19:53,857 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-09 23:19:54,021 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-09 23:19:54,028 INFO L189 MainTranslator]: Completed pre-run [2018-11-09 23:19:54,053 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-09 23:19:54,075 INFO L193 MainTranslator]: Completed translation [2018-11-09 23:19:54,075 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:19:54 WrapperNode [2018-11-09 23:19:54,075 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-09 23:19:54,076 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-09 23:19:54,076 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-09 23:19:54,076 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-09 23:19:54,122 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:19:54" (1/1) ... [2018-11-09 23:19:54,133 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:19:54" (1/1) ... [2018-11-09 23:19:54,146 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-09 23:19:54,146 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-09 23:19:54,146 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-09 23:19:54,146 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-09 23:19:54,154 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:19:54" (1/1) ... [2018-11-09 23:19:54,155 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:19:54" (1/1) ... [2018-11-09 23:19:54,157 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:19:54" (1/1) ... [2018-11-09 23:19:54,157 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:19:54" (1/1) ... [2018-11-09 23:19:54,159 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:19:54" (1/1) ... [2018-11-09 23:19:54,163 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:19:54" (1/1) ... [2018-11-09 23:19:54,164 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:19:54" (1/1) ... [2018-11-09 23:19:54,166 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-09 23:19:54,166 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-09 23:19:54,166 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-09 23:19:54,166 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-09 23:19:54,167 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:19:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5aa736d0-7d65-4903-af04-7506409f401d/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-09 23:19:54,209 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-09 23:19:54,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-09 23:19:54,209 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-09 23:19:54,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-09 23:19:54,368 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-09 23:19:54,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 11:19:54 BoogieIcfgContainer [2018-11-09 23:19:54,368 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-09 23:19:54,369 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-09 23:19:54,369 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-09 23:19:54,371 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-09 23:19:54,372 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-09 23:19:54,372 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 09.11 11:19:53" (1/3) ... [2018-11-09 23:19:54,373 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1066218e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.11 11:19:54, skipping insertion in model container [2018-11-09 23:19:54,373 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-09 23:19:54,373 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:19:54" (2/3) ... [2018-11-09 23:19:54,373 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1066218e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.11 11:19:54, skipping insertion in model container [2018-11-09 23:19:54,373 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-09 23:19:54,373 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 11:19:54" (3/3) ... [2018-11-09 23:19:54,374 INFO L375 chiAutomizerObserver]: Analyzing ICFG Urban-2013WST-Fig1-alloca_false-termination.c.i [2018-11-09 23:19:54,424 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-09 23:19:54,426 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-09 23:19:54,426 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-09 23:19:54,426 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-09 23:19:54,426 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-09 23:19:54,426 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-09 23:19:54,426 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-09 23:19:54,427 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-09 23:19:54,427 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-09 23:19:54,444 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2018-11-09 23:19:54,464 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2018-11-09 23:19:54,465 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-09 23:19:54,465 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-09 23:19:54,471 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-09 23:19:54,471 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2018-11-09 23:19:54,471 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-09 23:19:54,471 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2018-11-09 23:19:54,472 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2018-11-09 23:19:54,472 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-09 23:19:54,472 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-09 23:19:54,472 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-09 23:19:54,472 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2018-11-09 23:19:54,479 INFO L793 eck$LassoCheckResult]: Stem: 11#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 10#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~mem4, main_#t~mem5, main_#t~mem3, main_~x~0.base, main_~x~0.offset;#Ultimate.alloc_old_#length, #Ultimate.alloc_old_#valid := #length, #valid;assume { :begin_inline_#Ultimate.alloc } true;#Ultimate.alloc_~size := 4;havoc #Ultimate.alloc_#res.base, #Ultimate.alloc_#res.offset;havoc #valid, #length;assume #Ultimate.alloc_old_#valid[#Ultimate.alloc_#res.base] == 0;assume #valid == #Ultimate.alloc_old_#valid[#Ultimate.alloc_#res.base := 1];assume #Ultimate.alloc_#res.offset == 0;assume #Ultimate.alloc_#res.base != 0;assume #length == #Ultimate.alloc_old_#length[#Ultimate.alloc_#res.base := #Ultimate.alloc_~size];main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.alloc_#res.base, #Ultimate.alloc_#res.offset;assume { :end_inline_#Ultimate.alloc } true;main_~x~0.base, main_~x~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset; 6#L549-3true [2018-11-09 23:19:54,479 INFO L795 eck$LassoCheckResult]: Loop: 6#L549-3true assume true; 5#L548-1true SUMMARY for call main_#t~mem3 := read~int(main_~x~0.base, main_~x~0.offset, 4); srcloc: L548-1 7#L548-2true assume !!(main_#t~mem3 <= 10);havoc main_#t~mem3; 15#L549true SUMMARY for call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4); srcloc: L549 3#L549-1true assume !(main_#t~mem4 > 6);havoc main_#t~mem4; 6#L549-3true [2018-11-09 23:19:54,484 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-09 23:19:54,485 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2018-11-09 23:19:54,486 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-09 23:19:54,487 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-09 23:19:54,529 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 23:19:54,529 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-09 23:19:54,529 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 23:19:54,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-09 23:19:54,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-09 23:19:54,568 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-09 23:19:54,568 INFO L82 PathProgramCache]: Analyzing trace with hash 34421554, now seen corresponding path program 1 times [2018-11-09 23:19:54,569 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-09 23:19:54,569 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-09 23:19:54,570 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 23:19:54,570 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-09 23:19:54,570 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 23:19:54,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-09 23:19:54,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-09 23:19:54,588 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-09 23:19:54,588 INFO L82 PathProgramCache]: Analyzing trace with hash 1805861040, now seen corresponding path program 1 times [2018-11-09 23:19:54,588 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-09 23:19:54,588 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-09 23:19:54,590 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 23:19:54,590 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-09 23:19:54,590 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 23:19:54,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-09 23:19:54,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-09 23:19:54,784 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-09 23:19:54,784 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-09 23:19:54,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 09.11 11:19:54 BoogieIcfgContainer [2018-11-09 23:19:54,792 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-09 23:19:54,793 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-09 23:19:54,793 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-09 23:19:54,793 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-09 23:19:54,793 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 11:19:54" (3/4) ... [2018-11-09 23:19:54,795 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-09 23:19:54,818 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_5aa736d0-7d65-4903-af04-7506409f401d/bin-2019/uautomizer/witness.graphml [2018-11-09 23:19:54,818 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-09 23:19:54,819 INFO L168 Benchmark]: Toolchain (without parser) took 997.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 957.1 MB in the beginning and 1.1 GB in the end (delta: -113.9 MB). Peak memory consumption was 16.2 MB. Max. memory is 11.5 GB. [2018-11-09 23:19:54,820 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 982.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-09 23:19:54,820 INFO L168 Benchmark]: CACSL2BoogieTranslator took 253.74 ms. Allocated memory is still 1.0 GB. Free memory was 957.1 MB in the beginning and 930.3 MB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2018-11-09 23:19:54,820 INFO L168 Benchmark]: Boogie Procedure Inliner took 70.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 930.3 MB in the beginning and 1.1 GB in the end (delta: -196.6 MB). Peak memory consumption was 15.5 MB. Max. memory is 11.5 GB. [2018-11-09 23:19:54,820 INFO L168 Benchmark]: Boogie Preprocessor took 19.60 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-09 23:19:54,821 INFO L168 Benchmark]: RCFGBuilder took 202.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. [2018-11-09 23:19:54,821 INFO L168 Benchmark]: BuchiAutomizer took 423.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. [2018-11-09 23:19:54,821 INFO L168 Benchmark]: Witness Printer took 25.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-09 23:19:54,824 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 982.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 253.74 ms. Allocated memory is still 1.0 GB. Free memory was 957.1 MB in the beginning and 930.3 MB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 70.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 930.3 MB in the beginning and 1.1 GB in the end (delta: -196.6 MB). Peak memory consumption was 15.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.60 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 202.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 423.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. * Witness Printer took 25.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.3s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: No data available LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 548]: Nontermination argument in form of an infinite program execution. [2018-11-09 23:19:54,828 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-09 23:19:54,829 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-09 23:19:54,829 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-09 23:19:54,830 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTIdExpression@49950cb1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6acae600=3, NULL=0, \result=0, NULL=0, NULL=4, x=3, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6acae600=0, x=0, NULL=3, org.eclipse.cdt.internal.core.dom.parser.c.CASTIdExpression@f49b445=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTIdExpression@37a656da=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 548]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L547] EXPR, FCALL __builtin_alloca (sizeof(int)) [L547] int* x = __builtin_alloca (sizeof(int)); Loop: [L548] EXPR, FCALL \read(*x) [L548] COND TRUE *x <= 10 [L549] EXPR, FCALL \read(*x) [L549] COND FALSE !(*x > 6) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...